No abstract

No abstract

On the riverbed of the river Ros, of the city Bila Tserkva, we found and identified 16 families (33 species) of macrophytes. We identified 4 groups among them: 1) submerged hydrophytes (26%), 2) hydrophytes with floating leaves (42%), 3) free-floating hydrophytes (8%), 4) helophytes (8%). Dominants of phytocenotic aquatic groups are species-Carex acuata; Carex acutiformis, subdominants-Potamogeton berchololdii; Potamogeton obtusifolius. Water cenosis formed by the species: Potamogeton, Lemna minor and Cladophora form thickets, which are characterized by a total projective coverage of 60 to 100%. The index of the Mayer IM 1 and the macrophytic index MI 2 indicate the third class of water quality, which meets the criteria of moderately polluted and "polluted". Indicators of pollution are species-Potamogeton berchololdii and Lemna minor. Today, most reservoirs are under the influence of urbanization and largescale industrialization. The development of ecology problems has led to new ideas for monitoring and assessing the state of aquatic ecosystems. One of the promising areas of research to assess the state of aquatic ecosystems is the use of phytoindication. The biological method of assessing the state of the reservoir allows us to solve the problems that cannot be solved by hydrophysical and hydrochemical methods. Assessing the degree of pollution of the water body by the composition of living organisms, you can quickly establish its sanitary condition, determine the pollution degree of, to quantify the processes of natural self-purification of reservoirs. These days, macrophytes have been used as bioindicators to monitor the state of surface water. Macrophytes are a powerful autotrophic block of aquatic ecosystems. They are sensitive to changes in the state of their environment. Any change in the hydrochemical regime of the water body,